ES2531280T3 - High purity ferritic stainless steel that presents excellent corrosion resistance, and method for its production - Google Patents

High purity ferritic stainless steel that presents excellent corrosion resistance, and method for its production Download PDF

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Publication number
ES2531280T3
ES2531280T3 ES09831981T ES09831981T ES2531280T3 ES 2531280 T3 ES2531280 T3 ES 2531280T3 ES 09831981 T ES09831981 T ES 09831981T ES 09831981 T ES09831981 T ES 09831981T ES 2531280 T3 ES2531280 T3 ES 2531280T3
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ES
Spain
Prior art keywords
corrosion resistance
high purity
stainless steel
ferritic stainless
production
Prior art date
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Active
Application number
ES09831981T
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Spanish (es)
Inventor
Masaharu Hatano
Akihiko Takahashi
Eiichiro Ishimaru
Shigenori Takahata
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Nippon Steel Stainless Steel Corp
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Nippon Steel and Sumikin Stainless Steel Corp
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Publication date
Application filed by Nippon Steel and Sumikin Stainless Steel Corp filed Critical Nippon Steel and Sumikin Stainless Steel Corp
Application granted granted Critical
Publication of ES2531280T3 publication Critical patent/ES2531280T3/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/004—Dispersions; Precipitations
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite

Abstract

Un acero inoxidable ferrítico de alta pureza excelente en cuanto a resistencia frente a la corrosión, formado por, en % en masa, C: de 0,001 a 0,02 %, Si: de 0,01 a 0,6 %, Mn: de 0,01 a 0,6 %, P: de 0,005 a 0,04 %, S: de 0,0001 a 0,01 %, Cr: de 13 a 22 %, N: de 0,001 a 0,02 %, Al: de 0,005 a 0,05 %, Sn: de 0,001 a 1 %, y opcionalmente uno o más de Ti: de 0,05 a 0,35 %, Ni: de 0,05 a 0,5 %, Cu: de 0,05 a 0,5 %, Nb: de 0,05 a 0,7 %, Mo: de 0,005 a 0,5 %, Mg: de 0,0001 a 0,005 %, B: de 0,0003 a 0,005 %, Ca: de 0,0003 a 0,005 % y un equilibrio de Fe e impurezas inevitables, en el que dicho acero se caracteriza por cumplir las dos relaciones de la fórmula (1) y la fórmula (2) siguientes, en las que I(Fe), I(Cr), I(Sn) e I(O) son las intensidades de rayos-X de los óxidos de Fe, óxidos de Cr, óxidos de Sn y otros óxidos detectados en la superficie del acero medidas por medio de espectrómetro de fotoelectrones de rayos-X: 0 < I(Fe) / I(Cr) < 5 .......... fórmula (1) y 0 < I(O) / I(Sn) < 3 ........... fórmula (2).A high purity ferritic stainless steel excellent in corrosion resistance, consisting of, in mass%, C: 0.001 to 0.02%, Si: 0.01 to 0.6%, Mn: de 0.01 to 0.6%, P: 0.005 to 0.04%, S: 0.0001 to 0.01%, Cr: 13 to 22%, N: 0.001 to 0.02%, Al : from 0.005 to 0.05%, Sn: from 0.001 to 1%, and optionally one or more of Ti: from 0.05 to 0.35%, Ni: from 0.05 to 0.5%, Cu: from 0.05 to 0.5%, Nb: 0.05 to 0.7%, Mo: 0.005 to 0.5%, Mg: 0.0001 to 0.005%, B: 0.0003 to 0.005% , Ca: from 0.0003 to 0.005% and a balance of Fe and unavoidable impurities, in which said steel is characterized by fulfilling the two relations of formula (1) and formula (2) below, in which I ( Fe), I (Cr), I (Sn) and I (O) are the X-ray intensities of Fe oxides, Cr oxides, Sn oxides and other oxides detected on the surface of the steel measured by means of X-ray photoelectron spectrometer: 0 <I (Fe) / I (Cr) <5 .......... formula (1) and 0 <I (O) / I (Sn) <3. ... ....... formula (2).

ES09831981T 2008-12-09 2009-12-07 High purity ferritic stainless steel that presents excellent corrosion resistance, and method for its production Active ES2531280T3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2008313700 2008-12-09
JP2009276786A JP4624473B2 (en) 2008-12-09 2009-12-04 High purity ferritic stainless steel with excellent weather resistance and method for producing the same
PCT/JP2009/070788 WO2010067878A1 (en) 2008-12-09 2009-12-07 High-purity ferritic stainless steel having excellent corrosion resistance, and method for producing same

Publications (1)

Publication Number Publication Date
ES2531280T3 true ES2531280T3 (en) 2015-03-12

Family

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Family Applications (1)

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ES09831981T Active ES2531280T3 (en) 2008-12-09 2009-12-07 High purity ferritic stainless steel that presents excellent corrosion resistance, and method for its production

Country Status (9)

Country Link
US (1) US8721960B2 (en)
EP (1) EP2357259B1 (en)
JP (1) JP4624473B2 (en)
KR (1) KR101149704B1 (en)
CN (1) CN102245789B (en)
BR (1) BRPI0922554B1 (en)
ES (1) ES2531280T3 (en)
TW (1) TW201033379A (en)
WO (1) WO2010067878A1 (en)

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CN103608479B (en) * 2011-06-16 2016-09-07 新日铁住金不锈钢株式会社 Ferrite series stainless steel plate that wrinkle resistance is excellent and manufacture method thereof
JP5921352B2 (en) * 2011-08-05 2016-05-24 新日鐵住金ステンレス株式会社 Ferritic stainless steel sheet with excellent ridging resistance and method for producing the same
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WO2014104424A1 (en) 2012-12-24 2014-07-03 주식회사 포스코 Ferritic stainless steel for automotive exhaust system, which have excellent corrosion resistance against condensate, moldability, and high-temperature oxidation resistance, and method for manufacturing same
ES2795681T3 (en) 2013-02-04 2020-11-24 Nippon Steel Stainless Steel Corp Ferritic stainless steel sheet that is excellent in malleability and production method thereof
JP6106450B2 (en) * 2013-02-12 2017-03-29 新日鐵住金ステンレス株式会社 High purity ferritic stainless steel sheet excellent in temper color resistance and workability and method for producing the same
JP6116286B2 (en) * 2013-02-25 2017-04-19 新日鐵住金ステンレス株式会社 Ferritic stainless steel with less heat generation
TR201910842T4 (en) 2013-03-14 2019-08-21 Nippon Steel & Sumikin Sst Ferrite stainless steel sheet exhibiting a small increase in its resistance after thermal aging treatment and the method for producing it.
CN106661695B (en) * 2014-08-14 2019-10-29 杰富意钢铁株式会社 Ferrite series stainless steel plate
JP6159775B2 (en) * 2014-10-31 2017-07-05 新日鐵住金ステンレス株式会社 Ferritic stainless steel with excellent resistance to exhaust gas condensate corrosion and brazing, and method for producing the same
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Also Published As

Publication number Publication date
WO2010067878A1 (en) 2010-06-17
KR20110082081A (en) 2011-07-15
JP4624473B2 (en) 2011-02-02
US8721960B2 (en) 2014-05-13
BRPI0922554B1 (en) 2021-05-04
TW201033379A (en) 2010-09-16
TWI346708B (en) 2011-08-11
KR101149704B1 (en) 2012-05-23
CN102245789A (en) 2011-11-16
US20110265920A1 (en) 2011-11-03
EP2357259A4 (en) 2013-11-13
EP2357259B1 (en) 2015-02-11
JP2010159487A (en) 2010-07-22
CN102245789B (en) 2013-07-31
EP2357259A1 (en) 2011-08-17
BRPI0922554A2 (en) 2018-05-29

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